142310
domain: N
Appears in sequences
- Smaller of an amicable pair: (a,b) such that sigma(a) = sigma(b) = a+b, a < b.at n=17A002025
- Smaller of unitary amicable pair.at n=7A002952
- Amicable numbers.at n=33A063990
- Unitary amicable numbers.at n=14A063991
- Values of n associated with A123728.at n=10A123729
- Smaller member of an infinitary amicable pair.at n=24A126169
- List of numbers which are both amicable and friendly.at n=4A140688
- Conjectured list of smallest terms of k-sociable cycles of order r.at n=27A183016
- Numbers k such that sigma(k) = sigma(sigma(k)-k).at n=37A206708
- Smaller members of regular amicable pairs.at n=11A215491
- Abundant numbers whose aliquot sequence is abundant, deficient, abundant, ..., etc.at n=22A234969
- Amicable pairs.at n=34A259180
- Amicable pairs (x < y) ordered by nondecreasing sum (x + y) and then by increasing x.at n=34A259933
- Smaller of amicable pair (x, y) as they are listed in A259933.at n=17A260086
- Amicable pairs of even numbers.at n=24A262622
- Even amicable numbers.at n=23A262624
- (1+e)-sigma amicable numbers.at n=31A274116
- List of pairs of amicable numbers (m,n) where the sum of the pair is divisible by 10.at n=20A291422
- Smaller of bi-unitary amicable pair.at n=25A292980
- Amicable pairs {x, y} such that y is the sum of the divisors of x that are not divided by every prime factor of x and vice versa.at n=6A307986